Dash Leaflet: How to show direction on polylines

Dash Python
1

Hello,

I’m working on a map that connects points.

The connection between the points has a direction - think flow.

Is there some way that I can draw these lines in such a way that indicates direction without the need for a tooltip or popup? Like can I use an image overlay with arrows, or at least have dashes for one direction and dots for another, etc?

2

It looks like this PolylineDecorator package does the trick in javascript.

Is there a dash alternative?

3

Yes, that component is available in Dash too.

https://www.dash-leaflet.com/components/vector_layers/polyline_decorator

4

Awesome!

I guess “direction” is just determine by the order of the coordinate pairs(?)

5

Yes, I believe that’s how it works :blush: